Improvement in cotton-presses



UNITED STATES PATENT OEEICE.

JOSEPHUS LOVING, OF MOSOOHTENNESSEE.

IMPROVEMENT ISN COTTON-PRESSES.

Specification forming part of Letters Patent No. 19,571, dated March 9, 1858.

erence being had to the annexed drawings, y

making a part of this specification, in which-- Figure 1 is a horizontal central section of my ilnprovement. Fig. 2 is a longitudinal vertical central section of the same.

Similar letters of reference indicate corresponding parts in the two'iigures.

This invention relates to an improvement in 'that class of presses in which a progressive power is obtained; and it consists in the peculiar means employed for actuating the fol lower, whereby a progressive power is notonly obtained by a very simple means, but the small amount of friction attending the operating or moving of the follower gradually diminished as the leverage power is increased, the several parts so operating as to render this class of presses much more effectual than usual.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the press-box, which is fitted in a strong horizontal framing, B, constructed in any suitable way.

C represents the follower, which is fitted and works within the press-box. The follower is constructed in the usual'way and has a bar, E, attached to it, said bar passing throughl one end of the press-box and having three rollers, a c b, fitted in its outer end, said rollers being allowed to turn independently of eachother.

To the outer end of the follower-bar E two metallic straps, c c, are attached, one to the upper and the other to the lower side of the rod. The outer ends of these straps are 'connected by a rod, d, which serves as an axis for three rollers, e ef, all of which are shown in Fig. 2. The strapse c, attached to the 'followerrod at one end and connected at the opposite end by the rod d, form a link or loop through which two levers, F G, pass. These levers are crossed, or one lever, F, has an oblong opening or slot made in it, through which slot the other lever, G, passes. The inner sides of the two levers F G are faced for a requisite LOVING, of.

distance with metal plates g g, and the lever F, as the follower D is forced inward, bears against the two rollers a c, while the lever G bears against the central roller, Z. The inner ends of the levers F G have straps h attached,

said straps .passingaround cylindrical shafts it', placed at the end of the press-box A in the framing B, one at each side. (See Fig. 1.)

The operation is as follows: The follower Dv is drawn outward at one end of the press-box A by movingv the outer ends of the levers F G toward eachother, the lever F bearing against the two rollers e e, and the lever G against the central roller, f. Vhen the follower D is moved outwardy its full length, the cotton or other material to be compressed is placed within the press-box A, the doors G being opened, and when the requisite quantity is placed withinthe press-box the doors. C are closed and the outer ends of the levers F G are moved outward from each other, vas indicated by thev arrows 1, and the lever F bearsV against the rollers a a, and the lever G against the central roller, b, in the outer end of said bar. V,It will be seen that as the levers are moved in the direction alluded to-viz., in the direction indicated by arrow l-the speed of the follower D will gradually diminish as it is forced inward and compresses the cotton or othersub stance within the 'press-box, and as the speed diminishes the power of course increases in a corresponding degree. the follower is forced inward the distance between the fulcra of the levers on the shafts i and the bearing-points of the lever's F G against the rollers a d b gradually decreases, and cona sequently the lever-power correspondingly inf creases. It will also be seen that as the leverpower increases the bearing ofthe levers F G against the rollers a a b becomes more direct, so much so that before the substance in the press-box is fully4 compressed said rollers are not rotated or their movement is quite inappreciable. The rollers, therefore, when rotated by the levers during the first portion of their movement, diminish friction, and when their services in this respect are not required they remain dormant, there being comparatively `no appreciable friction to overcome during the latter part of the movements of the levers.

I would remark that, if desired, the outer ends of the levers F G may be provided each with a wheel fittedv on a curved or segment This is evident, for as y track or rail, and that the power may be applied to the levers F G in any proper manner.

By this improvement it will be seen that a progressive power is obtained by a very simple arrangement of means, speed being obtained when power is not required, and speed saeried and power obtained when power is required.

I do not claim, broadly, so operating the fol-4 lower of the press that a progressive or variable power is obtained, for various plans have been devised for effecting this purpose; but

I claim as new and desire to secure by Letters Patent- The peculiar means employed for thus op erating the follower-to wit, the crossed levers F G, in combination with the rollers a, a b and e ef, attached, respectively, to the follower-bar E and straps c c--substantially as herein shown and described.

J OSEPHUS LOVING. Witnesses: y

A. P. BROWN, A. H. YANOEY. 

